Runs nice and cool one day, hot the next. Why?

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gandalfnz

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If the engine sits for too long idling an it just dies ,then the engine is loading up with fuel an chokes
itself out ,the Lsn maybe too rich!
If the engine revs up before it dies ,the Lsn is too lean!

Try to lean the Lsn about a width of a screw driver tip at a time an see if it will idle longer!

Also ,does it it heat up after full WOT or as it sits an idles?..🤔
It starts choking pretty much as soon as the lsn takes over, so few seconds after a WOT.
No reving, just dies.
I increased the idle gap instead, as it has a very good take off, and I like when I run a little rich on the lsn, makes the engine cool down quicker when idling.
 

cbaker65

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It starts choking pretty much as soon as the lsn takes over, so few seconds after a WOT.
No reving, just dies.
I increased the idle gap instead, as it has a very good take off, and I like when I run a little rich on the lsn, makes the engine cool down quicker when idling.

I think that it may have something to do with a short Lsn needle or having a carb that has a long
Lsn needle ,one is harder to tune than the other!..🤔
 

gandalfnz

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I think that it may have something to do with a short Lsn needle or having a carb that has a long
Lsn needle ,one is harder to tune than the other!..🤔
No idea what type of carb Savage uses.
I am happy with how it runs now.
 

revojoyo

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The truck has had very little use, I'd say maybe a gallon. Just broken in properly.
I usually run a tank out, so between 20-30 mins per tank.
Also, running in grass will put the temps up a bit too.

How hot is yours running?
Just let it go, make sure it sounds good, has smoke and have fun.
I haven’t been able to get a temp range mine is fairly new and I run it the same. Enjoying the new hobby for sure. Also I realize that when I put the body on my revo (after getting it running good) it runs like crap. I heard cutting the windshield helps? Thinking I need more air flow
 

gandalfnz

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I haven’t been able to get a temp range mine is fairly new and I run it the same. Enjoying the new hobby for sure. Also I realize that when I put the body on my revo (after getting it running good) it runs like crap. I heard cutting the windshield helps? Thinking I need more air flow
I also noticed that temps do go up slightly when body is on.
I cut a nice oval hole on all my rc windshieds with a dremel.
 
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